#!/usr/bin/env python
# -*-coding:utf-8-*-
# File    : liyuqi.py
# Date    : 2021-02-20
# Author  : Tom.Lee


from _datetime import datetime

now = datetime.now()

startdate = datetime.strptime('2021-01-18', '%Y-%m-%d')

print("今天是打卡的第{}天".format((now - startdate).days +1))
